“Simple and clear information for Oregon voters,” reads the 2010 guide, paid for by the committee called “Vote No on 75—it’s a bad idea.”

Our Oregon spokesman Scott Moore says the casino opponents’ mailing is roguish for two reasons: First, the mailer mimics Our Oregon’s design so closely that voters may think the communication comes from his group when it does not.

It would be in casino opponents’ interest to create that confusion because Our Oregon’s endorsements express the view of unions and nonprofits who represent hundreds of thousands of voters.

“Voters have told us in the past that our guides are very useful to them because they identify where groups they trust stand on ballot measures,” Moore says. “Now, along comes a cheap imitation, almost a carbon copy, that risks reducing the value of what we do going forward.”

Second, while the No on 75 mailer urges a “no” vote, Our Oregon is neutral on the casino measure.